All we can figure is that a storm deluge plus a new front garage door equalled the sump pump not being good enough, and the water rushing in the back of the garage, only to be dammed at the front by the new door. Roughly 5" watermarks and damage on everything that low can be seen, and there were still puddles in places, when we found out a couple days later.

(You can click on any photo for a larger image)